Simplify the expression. 11 + 3(-5 + 4)

1. Distributive property

3*-5 = -15

3*4 = 12

So now we have,

11 + (-15 + 12)

Work with parentheses

11 + -3

11 + -3 is the same as 11 - 3

11-3=8

The answer is 8

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2